sujb.cz website information.
sujb.cz domain name is registered by .CZ top-level domain registry. See the other sites registred in .CZ domain zone.
Following name servers are specified for sujb.cz domain:
- ns.suro.cz
- ns.erc-cr.cz
and probably website sujb.cz is hosted by Akamai International B.V. web hosting company. Check the complete list of other most popular websites hosted by Akamai International B.V. hosting company.
According to Alexa traffic rank the highest website sujb.cz position was 42346 (in the world). The lowest Alexa rank position was 999337. Now website sujb.cz ranked in Alexa database as number 424811 (in the world).
Website sujb.cz Desktop speed measurement score (73/100) is better than the results of 56.16% of other sites shows that the page desktop performance can be improved.
sujb.cz Mobile usability score (61/100) is better than the results of 5.47% of other sites and shows that the page mobile usability is poor and can be improved.
Mobile speed measurement score of sujb.cz (60/100) is better than the results of 54.7% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
Date | Rank | Change |
---|---|---|
Sep-30-2024 | N/A | N/A |
Sep-29-2024 | 424,811 | 10,342 |
Sep-28-2024 | 435,153 | -7,667 |
Sep-27-2024 | 427,486 | 10,903 |
Sep-26-2024 | 438,389 | -6,874 |
Sep-25-2024 | 431,515 | -4,510 |
Sep-24-2024 | 427,005 | 3,369 |
Advertisement
sujb.cz Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
sujb.cz whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
% (c) 2006-2021 CZ.NIC, z.s.p.o.
%
% Intended use of supplied data and information
%
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
%
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
%
% See also a search service at http://www.nic.cz/whois/
%
%
% Whoisd Server Version: 3.12.2
% Timestamp: Tue May 10 10:24:30 2022
domain: sujb.cz
registrant: SUJBPRAHA
admin-c: SUJBPRAHA
nsset: NSS:SUJB:8
keyset: SUJB
registrar: REG-ACTIVE24
registered: 29.03.1997 01:00:00
changed: 02.02.2018 14:43:51
expire: 10.10.2022
contact: SUJBPRAHA
org: Statni urad pro jadernou bezpecnost
name: Statni urad pro jadernou bezpecnost
address: Senovazne namesti 9
address: Praha 1
address: 11000
address: CZ
registrar: REG-ACTIVE24
created: 02.07.2013 08:36:26
changed: 19.06.2020 11:38:16
nsset: NSS:SUJB:8
nserver: ns.suro.cz
nserver: ns.erc-cr.cz (80.95.112.247, 2a00:11b0:f100:400::247)
tech-c: SUJBPRAHA
registrar: REG-ACTIVE24
created: 29.08.2008 11:05:58
changed: 02.02.2018 14:38:32
keyset: SUJB
dnskey: 257 3 8 AwEAAZnCUfS0wv7q8USQzc93jjaTd6TvdHZeO16CNfyUj4ESqPgFvDrWPz4WFGpfn1GK08HUPVESBCdhhOr7VSxq3zAMOcwfLJuHmBB+WriZwEV9KTtY1AbHsKP1+wDLC2mmG36FSyYFiQWOSaulfFcBZugRHZzla5u7vSiC+ME/5gch7EusrXMvvD2ruIVsBvl5j0OS3PBJ4MQpMi33FvprgAe4eidVKOu1sKT1vGFqRg1xlPoPDzFNZwPmm4lG7pLdhoisqw0W35xfWdwCbyjXMRhZKXorHIEHcD+jvLMLs75CT4JkKBIPDpKeSoPw99iQQSrpFAdvaVyAfESbiGL5Csk=
tech-c: SUJBPRAHA
registrar: REG-ACTIVE24
created: 28.02.2013 10:20:11
changed: 02.02.2018 15:22:56
sujb.cz server information
sujb.cz desktop page speed rank
Last tested: 2019-11-07
sujb.cz Desktop Speed Test Quick Summary
priority - 11 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/bg_navboard.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…ert.zajimaveOdkazy.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/box.bullet.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/box.contact.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…r.contentDelimiter.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…s/box.rychleOdkazy.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…ges/box.title.dark.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…es/box.title.light.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/box1Bg.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/btn_search.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/ico_phone.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…ages/icon_facebook.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/icon_rss.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/logo.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/topImage.gif (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/js/main.js (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/yaml/core/base.css (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css (expiration not specified)
https://cse.google.com/coop/cse/brand?form=searchb…59599061%3An_18hsqiri0 (30 minutes)
priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
https://www.google.com/coop/cse/brand?form=searchb…59599061%3An_18hsqiri0
Optimize CSS Delivery of the following:
https://www.sujb.cz/typo3temp/assets/css/d42b6e1bdf.css?1558913121
https://www.sujb.cz/fileadmin/templates/www.sujb.c…_layout.css?1325888155
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/yaml/core/base.css
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/css/screen/basemod.css
https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css
https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css
https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css
priority - 8 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 75.2KiB (82% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/logo.png could save 3.5KiB (21% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/icon_rss.png could save 179B (26% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…ages/icon_facebook.png could save 132B (27% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/box.bullet.png could save 125B (24% reduction).
priority - 4 Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 39.5KiB (67% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css could save 8.5KiB (71% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/yaml/core/base.css could save 5.1KiB (63% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css could save 4.6KiB (63% reduction).
Compressing https://www.sujb.cz/typo3temp/assets/css/d42b6e1bdf.css?1558913121 could save 2.4KiB (72% reduction).
Compressing https://www.sujb.cz/typo3conf/ext/news/Resources/P…s-basic.css?1558912140 could save 2.3KiB (73% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css could save 1.6KiB (56% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/css/screen/basemod.css could save 936B (52% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/js/main.js could save 648B (54% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…_layout.css?1325888155 could save 137B (39% reduction).
priority - 3 Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
https://www.sujb.cz/
https://www.sujb.cz/uvod/
priority - 2 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 16.6KiB (43% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css could save 4KiB (55% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css could save 2.4KiB (84% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css could save 1.8KiB (16% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.cz/css/screen/basemod.css could save 1.1KiB (64% reduction).
Minifying https://www.sujb.cz/typo3temp/assets/css/d42b6e1bdf.css?1558913121 could save 643B (20% reduction).
Minifying https://www.sujb.cz/typo3conf/ext/news/Resources/P…s-basic.css?1558912140 could save 606B (19% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.c…_layout.css?1325888155 could save 180B (50% reduction).
priority - 0 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 186B (16% reduction).
sujb.cz Desktop Resources
Total Resources | 30 |
Number of Hosts | 4 |
Static Resources | 23 |
JavaScript Resources | 2 |
CSS Resources | 8 |
sujb.cz Desktop Resource Breakdown
sujb.cz mobile page speed rank
Last tested: 2017-05-18
sujb.cz Mobile Speed Test Quick Summary
priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
https://www.google.com/coop/cse/brand?form=searchb…59599061%3An_18hsqiri0
Optimize CSS Delivery of the following:
https://www.sujb.cz/typo3conf/ext/t3colorbox/Resou…olorbox.css?1494809160
https://www.sujb.cz/fileadmin/templates/www.sujb.c…_layout.css?1325888155
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/yaml/core/base.css
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/css/screen/basemod.css
https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css
https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css
https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css
priority - 14 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/bg_navboard.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…ert.zajimaveOdkazy.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/box.bullet.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/box.contact.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…r.contentDelimiter.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…s/box.rychleOdkazy.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…ges/box.title.dark.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…es/box.title.light.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/box1Bg.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/btn_search.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/ico_phone.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/logo.png (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/topImage.gif (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/js/main.js (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.cz/yaml/core/base.css (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css (expiration not specified)
https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css (expiration not specified)
priority - 10 Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
https://www.sujb.cz/
https://www.sujb.cz/uvod/
priority - 8 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 74.7KiB (83% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/images/logo.png could save 3.5KiB (21% reduction).
priority - 5 Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 45.9KiB (66% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css could save 8.4KiB (71% reduction).
Compressing https://www.sujb.cz/typo3conf/ext/t3colorbox/Resou….6.4.min.js?1494809160 could save 7.1KiB (60% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/yaml/core/base.css could save 5.1KiB (63% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css could save 4.6KiB (63% reduction).
Compressing https://www.sujb.cz/typo3temp/Assets/71eb1e6335.css?1494808103 could save 3.6KiB (75% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css could save 1.6KiB (56% reduction).
Compressing https://www.sujb.cz/typo3conf/ext/t3colorbox/Resou…olorbox.css?1494809160 could save 1.5KiB (63% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/css/screen/basemod.css could save 936B (52% reduction).
Compressing https://www.sujb.cz/fileadmin/templates/www.sujb.cz/js/main.js could save 648B (54% reduction).
priority - 2 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 16.3KiB (45% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.c…en/content_default.css could save 4KiB (55% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.c…nt/print_003_draft.css could save 2.4KiB (84% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.c…sujb_layout_screen.css could save 1.7KiB (15% reduction).
Minifying https://www.sujb.cz/typo3temp/Assets/71eb1e6335.css?1494808103 could save 1.2KiB (25% reduction).
Minifying https://www.sujb.cz/fileadmin/templates/www.sujb.cz/css/screen/basemod.css could save 1.1KiB (64% reduction).
priority - 0 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 1.8KiB (11% reduction).
sujb.cz Mobile Resources
Total Resources | 32 |
Number of Hosts | 5 |
Static Resources | 23 |
JavaScript Resources | 4 |
CSS Resources | 8 |
sujb.cz Mobile Resource Breakdown
sujb.cz mobile page usability
Last tested: 2017-05-18
sujb.cz Mobile Usability Test Quick Summary
priority - 39 Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
Státní správa
and 3 others render only 5 pixels tall (14 CSS pixels).|
and 2 others render only 5 pixels tall (14 CSS pixels).English
and 1 others render only 5 pixels tall (14 CSS pixels).|
renders only 5 pixels tall (14 CSS pixels).SÚJB /
renders only 5 pixels tall (14 CSS pixels).Úvod
renders only 5 pixels tall (14 CSS pixels).Rychlé odkazy
and 1 others render only 7 pixels tall (18 CSS pixels).telefonní spojení:
and 5 others render only 5 pixels tall (13 CSS pixels).Senovážné námě…110 00 Praha 1
and 4 others render only 5 pixels tall (13 CSS pixels).podatelna@sujb.cz
renders only 5 pixels tall (13 CSS pixels).Podatelna
renders only 5 pixels tall (13 CSS pixels).Politika integ…systému řízení
and 6 others render only 5 pixels tall (12 CSS pixels).Radioaktivní odpady
and 6 others render only 5 pixels tall (12 CSS pixels).17.05.2017 11:46
and 4 others render only 5 pixels tall (12 CSS pixels).Bilaterální je…ne 28. 3. 2017
and 4 others render only 8 pixels tall (20 CSS pixels).Toto poselství……a zítra?“,...
and 4 others render only 5 pixels tall (14 CSS pixels).Mohlo by Vás zajímat..
and 1 others render only 7 pixels tall (18 CSS pixels).Aktuální infor…lektráren v ČR
and 29 others render only 5 pixels tall (13 CSS pixels).Prohlášení o přístupnosti
and 1 others render only 5 pixels tall (13 CSS pixels).Senovážné námě…110 00 Praha 1
and 1 others render only 7 pixels tall (18 CSS pixels).ID datové schránky: me7aazb
renders only 7 pixels tall (18 CSS pixels).Developed and managed by
renders only 5 pixels tall (12 CSS pixels).FormaX Design, s.r.o.
renders only 5 pixels tall (12 CSS pixels).priority - 19 Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
<a href="/">SÚJB</a>
and 1 others are close to other tap targets.<a href="/">Česky</a>
and 1 others are close to other tap targets.<a href="mailto:podatelna@sujb.cz" class="external-link">podatelna@sujb.cz</a>
is close to 1 other tap targets.<a href="/podatelna/">Podatelna</a>
is close to 1 other tap targets.<a href="https://www.su…nancu_SUJB.pdf">Etický kodex zaměstnanců SÚJB</a>
and 6 others are close to other tap targets.<a href="http://www.suj…bustni-a-sujb/" class="internal-link">Mise IRRS</a>
and 6 others are close to other tap targets.<a href="/aktualne/">Aktuálně</a>
and 33 others are close to other tap targets.<a href="http://www.webarchiv.cz/">WebArchiv</a>
and 1 others are close to other tap targets.priority - 10 Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Configure a viewport for this page.
sujb.cz similar domains
www.sujb.net
www.sujb.org
www.sujb.info
www.sujb.biz
www.sujb.us
www.sujb.mobi
www.ujb.cz
www.sujb.cz
www.wujb.cz
www.swujb.cz
www.wsujb.cz
www.eujb.cz
www.seujb.cz
www.esujb.cz
www.dujb.cz
www.sdujb.cz
www.dsujb.cz
www.zujb.cz
www.szujb.cz
www.zsujb.cz
www.xujb.cz
www.sxujb.cz
www.xsujb.cz
www.aujb.cz
www.saujb.cz
www.asujb.cz
www.sjb.cz
www.syjb.cz
www.suyjb.cz
www.syujb.cz
www.shjb.cz
www.suhjb.cz
www.shujb.cz
www.sjjb.cz
www.sujjb.cz
www.sjujb.cz
www.sijb.cz
www.suijb.cz
www.siujb.cz
www.sub.cz
www.sunb.cz
www.sujnb.cz
www.sunjb.cz
www.suhb.cz
www.sujhb.cz
www.suub.cz
www.sujub.cz
www.suujb.cz
www.suib.cz
www.sujib.cz
www.sukb.cz
www.sujkb.cz
www.sukjb.cz
www.sumb.cz
www.sujmb.cz
www.sumjb.cz
www.suj.cz
www.sujv.cz
www.sujbv.cz
www.sujvb.cz
www.sujg.cz
www.sujbg.cz
www.sujgb.cz
www.sujh.cz
www.sujbh.cz
www.sujn.cz
www.sujbn.cz
sujb.cz Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
sujb.cz TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.